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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: HF/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HF/cc-pVDZ
 hartrees
Energy at 0K-192.746570
Energy at 298.15K-192.752180
Nuclear repulsion energy147.688954
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3638 3303 80.32      
2 A 3392 3080 17.30      
3 A 3323 3017 6.68      
4 A 3294 2991 9.20      
5 A 2396 2176 12.06      
6 A 1623 1474 0.54      
7 A 1488 1351 4.90      
8 A 1300 1180 1.61      
9 A 1217 1105 0.78      
10 A 1168 1061 3.14      
11 A 1027 932 24.46      
12 A 861 782 2.36      
13 A 808 734 29.59      
14 A 802 728 15.44      
15 A 545 495 12.36      
16 A 223 203 1.61      
17 A 3377 3066 0.17      
18 A 3285 2983 19.77      
19 A 1563 1419 2.11      
20 A 1290 1171 0.63      
21 A 1216 1104 0.70      
22 A 1183 1074 3.51      
23 A 1004 911 7.54      
24 A 884 803 10.22      
25 A 758 688 47.29      
26 A 568 515 4.54      
27 A 230 209 1.77      

Unscaled Zero Point Vibrational Energy (zpe) 21230.6 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 19277.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/cc-pVDZ
ABC
0.53484 0.11161 0.10595

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.635 0.000
C2 -1.084 -0.331 0.000
H3 -0.329 1.666 0.000
C4 1.275 0.333 0.747
C5 1.275 0.333 -0.747
C6 -1.978 -1.122 0.000
H7 -2.773 -1.827 0.000
H8 1.751 1.156 1.264
H9 1.336 -0.619 1.257
H10 1.751 1.156 -1.264
H11 1.336 -0.619 -1.257

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.45151.08221.50801.50802.64543.70872.22142.22182.22142.2218
C21.45152.13432.56112.56111.19402.25723.44122.74143.44122.7414
H31.08222.13432.21532.21533.23884.26332.48713.09392.48713.0939
C41.50802.56112.21531.49413.64024.64861.08221.08152.22422.2195
C51.50802.56112.21531.49413.64024.64862.22422.21951.08221.0815
C62.64541.19403.23883.64023.64021.06334.54853.57914.54853.5791
H73.70872.25724.26334.64864.64861.06335.56474.46365.56474.4636
H82.22143.44122.48711.08222.22424.54855.56471.82262.52733.1106
H92.22182.74143.09391.08152.21953.57914.46361.82263.11062.5142
H102.22143.44122.48712.22421.08224.54855.56472.52733.11061.8226
H112.22182.74143.09392.21951.08153.57914.46363.11062.51421.8226

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.810 C1 C4 C5 60.305
C1 C4 H8 117.152 C1 C4 H9 117.235
C1 C5 C4 60.305 C1 C5 H10 117.152
C1 C5 H11 117.235 C2 C1 H3 113.994
C2 C1 C4 119.843 C2 C1 C5 119.843
C2 C6 H7 179.977 H3 C1 C4 116.623
H3 C1 C5 116.623 C4 C1 C5 59.390
C4 C5 H10 118.516 C4 C5 H11 118.141
C5 C4 H8 118.516 C5 C4 H9 118.141
H8 C4 H9 114.778 H10 C5 H11 114.778
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.207 0.054    
2 C 0.301 -0.001    
3 H 0.056 0.070    
4 C -0.020 -0.170    
5 C -0.020 -0.170    
6 C -0.363 -0.412    
7 H 0.039 0.275    
8 H 0.050 0.082    
9 H 0.057 0.095    
10 H 0.050 0.082    
11 H 0.057 0.095    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.763 0.361 0.000 0.844
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.142 2.830 0.000
y 2.830 -27.546 0.000
z 0.000 0.000 -31.836
Traceless
 xyz
x 0.549 2.830 0.000
y 2.830 2.943 0.000
z 0.000 0.000 -3.493
Polar
3z2-r2-6.985
x2-y2-1.596
xy2.830
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.610 2.142 0.000
y 2.142 6.721 0.000
z 0.000 0.000 5.486


<r2> (average value of r2) Å2
<r2> 120.497
(<r2>)1/2 10.977